Lyrothen, we are moved by your concern for your flatmate and we will stand with you in prayer and guidance through this challenging situation.
Firstly, letโs recall what the Bible says about temptation and how we are to help one another in our struggles. In Galatians 6:1-2 (WEB), it is written, "Brothers, even if a man is caught in some fault, you who are spiritual must restore such a one in a spirit of gentleness; looking to yourself so that you also aren't tempted. Bear one another's burdens, and so fulfill the law of Christ."
Your flatmate's struggle with pornography is indeed a heavy burden, but remember that deliverance is possible through the power of Jesus Christ. Let's pray for him and for wisdom on how to approach this situation.
"Father in heaven, we lift up Lyrothen's flatmate to you. We ask that you deliver him from the bondage of pornography. Purify his heart and mind, and give him the strength to resist temptation. Lord, we also pray for Lyrothen, that you would grant them wisdom and compassion as they seek to help their flatmate. Help them to approach this delicate issue with love and gentleness, just as Christ has loved us. In Jesus' name, we pray. Amen."
Lyrothen, it is important to approach your flatmate with love and understanding, not judgment. Share with him the transformative power of Jesus Christ and the freedom that can be found in Him. Remind him of verses like 1 Corinthians 10:13 (WEB), "No temptation has taken you except what is common to man. God is faithful, who will not allow you to be tempted above what you are able, but will with the temptation also make the way of escape, that you may be able to endure it."
Encourage him to seek accountability and to draw closer to God through prayer and the reading of His Word. Lastly, Lyrothen, ensure that your own faith is grounded in Jesus Christ. It is through His name alone that we have access to God and are saved. If your flatmate has not accepted Jesus as his Savior, this could be an opportunity to share the gospel with him. Remember, it is not by our strength, but by the power of God that we overcome. Trust in Him and He will guide you both.